🏷️ Basic Information

Make:

Citroen

Model:

BX

Year:

1990

Platform Code:

BX

👋 Introduction

Positioning:

A comprehensive resource designed for both professional mechanics and ambitious DIY enthusiasts, offering factory-level repair information for the 1990 Citroen BX.

Analogy To Physical Manuals:

Equivalent in detail and scope to traditional printed factory service manuals, but with the convenience of instant digital access.

Unique Selling Points:

Instant download, printable, zoomable, covers factory-level procedures, targets professional and DIY users with basic mechanical knowledge.

📋 Manual Details

Manual Scope:

Comprehensive repair and service for the Citroen BX (1990 model year)

Estimated Page Count:

Likely 500+ pages (typical for a full factory service manual)

Type:

Repair Service Manual

Language:

English

File Format:

PDF

Delivery Method:

Instant Download

Software Requirements:

Adobe PDF Reader, WinZip

Operating System Compatibility:

All Versions of Windows & Mac

📖 Manual Coverage

Engine Mechanical:

Detailed procedures for engine overhaul, component replacement, timing, lubrication system, cooling system

Fuel System:

Fuel injection (e.g., Bosch LE2-Jetronic for petrol variants), carburettor systems, fuel pump, fuel lines, tank service

Ignition System:

Spark plugs, coils, distributor, ignition timing, electronic ignition components

Transmission Manual:

Clutch assembly, gearbox overhaul, shifting mechanisms, driveshafts

Transmission Automatic:

Service and repair procedures for the automatic transmission (if applicable to the 1990 model)

Hydropneumatic Suspension:

Citroen's signature hydropneumatic system, including spheres, pumps, fluid, height correction, and maintenance

Brakes:

Hydraulic system, brake discs, pads, calipers, master cylinder, ABS (if equipped), handbrake

Steering:

Power steering system, steering rack, column, linkages

Electrical System:

Battery, alternator, starter motor, lighting, wipers, horn, dashboard instrumentation, wiring diagrams

Body And Chassis:

Body panel removal and installation, door mechanisms, glass, trim, frame inspection and repair

Heating And Ventilation:

HVAC system components, controls, ducting, heater core, blower motor

Body Electronics:

Central locking, power windows, mirrors (if equipped)

Maintenance:

Scheduled maintenance, fluid changes, filter replacements, inspections

Troubleshooting:

Diagnostic guides, symptom-based problem solving

Repair:

Step-by-step repair instructions for all major systems

Disassembly Assembly:

Detailed instructions for component removal and reinstallation

Cleaning:

Cleaning procedures for specific components before reassembly

Reinstallation:

Proper procedures for putting components back into the vehicle

Wiring Diagrams:

Comprehensive electrical schematics for fault finding and repairs

Depth:

Full factory service manual level, suitable for professional technicians and advanced DIYers

📊 Manual Specifications

Print Quality:

Full Printable (high resolution for clarity)

Zoom Capability:

YES (allows for detailed inspection of diagrams and text)

Binding:

N/A (Digital PDF)

Paper Type:

N/A (Digital PDF)

⚙️ Engine Specifications

Engine Variants:

Likely includes XU series petrol engines (e.g., XU7, XU9) and possibly DW series diesel engines depending on market. Common petrol engines include 1.6L and 1.9L variants.

Typical Power Output:

Petrol models typically ranged from 75 hp (1.6L) to 125 hp (1.9 GTi). Diesel models around 60-71 hp.

Fuel Delivery:

Carburetted (e.g., Solex) or Electronic Fuel Injection (EFI), such as Bosch LE2-Jetronic.

Ignition Timing:

Specifications and procedures for checking and adjusting ignition timing are detailed.

Emissions Control:

Information on emission control systems, if applicable to the 1990 model year.

🔧 Transmission

Type:

5-speed manual transmission (common)

Type:

3-speed or 4-speed automatic transmission (available on some models)

Clutch Type:

Hydraulically operated single dry plate clutch

Manual Transmission Fluid:

Specific API GL-4 or GL-5 gear oil (e.g., 75W-80 or 75W-90) with specified capacity. (Manual will provide exact spec).

Automatic Transmission Fluid:

Specific ATF (Automatic Transmission Fluid) type (e.g., Dexron II) with specified capacity. (Manual will provide exact spec).

📐 Dimensions

Body Styles:

5-door hatchback, potentially 3-door hatchback and estate/break variants.

Curb Weight:

Varies by engine and equipment, typically between 1000-1200 kg.

Gross Vehicle Weight Rating:

Specified in manual, varies by model variant.

🛡️ Safety Features

Crash Test Performance:

Original Euro NCAP or equivalent safety ratings from the period (likely limited compared to modern standards).

ABS:

Anti-lock Braking System (ABS) was an optional or standard feature on higher trims and performance variants.

Seatbelts:

Standard seatbelts, potentially inertia-reel types.

Crash Structure:

Designed with energy-absorbing crumple zones.

💡 Technology Features

Audio System:

Basic AM/FM radio with cassette player, often with optional speaker upgrades.

Dashboard:

Features a distinctive single-spoke steering wheel and a digital or analog dashboard depending on trim level. Includes various warning lights and gauges.

ABS:

Optional ABS for enhanced braking safety.

Features:

Limited by 1990 standards; primarily mechanical and electrical systems without advanced electronic connectivity.

🔧 Maintenance

Oil Change Interval:

Typically 5,000-7,500 miles or 12 months, depending on driving conditions and oil used. (Manual provides precise intervals).

Timing Belt Replacement:

Critical for XU engines; typically every 50,000-60,000 miles or 4-5 years. (Manual confirms exact interval and procedure).

Engine Oil Specification:

API SG or higher, viscosity grade typically 10W-40 or 15W-50, depending on climate. (Manual confirms exact specification).

Coolant Specification:

Ethylene glycol based antifreeze with corrosion inhibitors, typically a 50/50 mix with distilled water. (Manual confirms type and capacity).

Brake Fluid Specification:

DOT 3 or DOT 4 hydraulic brake fluid. (Manual confirms exact specification).

Hydropneumatic Fluid Specification:

Citroen LHS 2 (or equivalent mineral-based fluid for later models/upgrades). (Manual confirms exact fluid and capacity).

Suspension Spheres:

Hydropneumatic spheres require periodic replacement or recharging to maintain ride quality and height.

Timing Belt Failure:

Non-interference engines for some early variants, but belt failure can still cause significant issues. Critical to adhere to replacement intervals.

Electrical Gremlins:

Common in older French cars; grounding issues, connector corrosion, and aging wiring can cause intermittent faults.

Hydropneumatic Fluid Leaks:

Associated with seals, hoses, and pump components due to age and wear.

Rust Corrosion:

Bodywork and chassis can be susceptible to rust, especially in regions with salted roads.

📚 Vehicle History

Citroen Innovation:

Citroen's reputation for pioneering hydropneumatic suspension and avant-garde design.

Bx Development:

Designed by Marcello Gandini (G Bertone studio), known for its aerodynamic, futuristic design and innovative interior.

Production Years:

1982-1994 (1990 falls within the later production phase, potentially facelifted models).

🏆 Awards & Recognition

Design Awards:

While not always winning specific awards, the BX was lauded for its distinctive and aerodynamic design.

Industry Reviews:

Praised for its comfortable ride quality, innovative technology (hydropneumatic suspension), and practicality. Criticisms sometimes focused on reliability of certain electrical components and complex hydropneumatic system maintenance.